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      1 /*	$NetBSD: expand.h,v 1.26 2021/11/22 05:17:43 kre Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1991, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * This code is derived from software contributed to Berkeley by
      8  * Kenneth Almquist.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. Neither the name of the University nor the names of its contributors
     19  *    may be used to endorse or promote products derived from this software
     20  *    without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     32  * SUCH DAMAGE.
     33  *
     34  *	@(#)expand.h	8.2 (Berkeley) 5/4/95
     35  */
     36 
     37 #include <inttypes.h>
     38 
     39 struct strlist {
     40 	struct strlist *next;
     41 	char *text;
     42 };
     43 
     44 
     45 struct arglist {
     46 	struct strlist *list;
     47 	struct strlist **lastp;
     48 };
     49 
     50 /*
     51  * expandarg() flags
     52  */
     53 #define EXP_SPLIT	0x1	/* perform word splitting */
     54 #define EXP_TILDE	0x2	/* do normal tilde expansion */
     55 #define EXP_VARTILDE	0x4	/* expand tildes in an assignment */
     56 #define EXP_REDIR	0x8	/* file glob for a redirection (1 match only) */
     57 #define EXP_CASE	0x10	/* keeps quotes around for CASE pattern */
     58 #define EXP_IFS_SPLIT	0x20	/* need to record arguments for ifs breakup */
     59 #define EXP_IN_QUOTES	0x40	/* don't set EXP_IFS_SPLIT again */
     60 #define EXP_GLOB	0x80	/* perform filename globbing */
     61 #define EXP_NL		0x100	/* keep CRTNONL in output */
     62 
     63 #define EXP_FULL	(EXP_SPLIT | EXP_GLOB)
     64 #define EXP_QNEEDED	(EXP_GLOB | EXP_CASE | EXP_REDIR)
     65 
     66 union node;
     67 
     68 char *expandhere(union node *);
     69 void expandarg(union node *, struct arglist *, int);
     70 int rmescapes(char *);
     71 int casematch(union node *, char *);
     72